trwać

1. to last (to exist for some time)
2. to stay (to remain without changes for some time) [+ w (locative) = in what state]
3. to stay (to remain by someone) [+ przy (locative) = by whom]
4. to stay (to be persistent in a belief or manner of acting) [+ w (locative)] or [+ przy (locative) = with what]